Portion of a toothbrush handle



FIG. 1 is a perspective view of a portion of a toothbrush handle showingour new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right-side view thereof, the left-side view being amirror-image thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is an enlarged rear perspective view thereof.

The regularly spaced broken lines represent environmental subject matterthat forms no part of the claimed design.

The ornamental design for a portion of a toothbrush handle, as shown anddescribed.